摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device of bulb type having a wide luminous intensity distribution irrespective of a simple structure inside a globe.SOLUTION: A circuit board 44 included in a lighting device has a surface mounted LED device 42 mounted in the central part and a side light-emitting LED device 43 mounted in a periphery part. This surface mounted LED device 42 has a strong luminous intensity distribution in a vertical direction of the circuit board 44, and the side light-emitting LED device 43 has a strong luminous intensity distribution in a horizontal direction of the circuit board 44. As a result, the bulb-type LED lamp 40 (lighting device) has a simple structure inside the globe 41 while having a wide luminous intensity distribution. |